Temporal Patterns of Feeding Behaviour in Free-Ranging Horses

Behaviour ◽  
1986 ◽  
Vol 96 (1-2) ◽  
pp. 105-129 ◽  
Author(s):  
Eleanor Mayes ◽  
Patrick Duncan
Keyword(s):  
Circadian Rhythm ◽  
Feeding Behaviour ◽  
Control Mechanism ◽  
Temporal Patterns ◽  
Vegetation Types ◽  
Preceding Interval ◽  
Gut Fill ◽  
Free Ranging

AbstractFeeding was patterned into meals separated by intervals of non-random length. Meal length, which showed a marked circadian rhythm, was positively correlated with the length of the preceding interval (preprandial correlation) in all seasons except the summer. This result implies the existence of a control mechanism which maintained gut-fill high. The organisation of feeding within meals (length of feeding, standing and walking bouts) did not vary consistently between vegetation types, but was strongly influenced by the activity of biting flies.

scholarly journals Feeding behaviour of free–ranging penguins determined by oesophageal temperature

2001 ◽  
Vol 268 (1463) ◽  
pp. 151-157 ◽  
Author(s):  
Jean-Benoît Charrassin ◽  
Akiko Kato ◽  
Yves Handrich ◽  
Katsufumi Sato ◽  
Yasuhiko Naito ◽  
...  
Keyword(s):  
Feeding Behaviour ◽  
Oesophageal Temperature ◽  
Free Ranging

Geographical distribution of Emesis Fabricius (Lepidoptera: Riodinidae) in Mexico: Updated checklist and temporal patterns

Zootaxa ◽  
2021 ◽  
Vol 4964 (3) ◽  
pp. 401-442
Author(s):  
MARYSOL TRUJANO-ORTEGA ◽  
CURTIS J. CALLAGHAN ◽  
ARTURO ARELLANO-COVARRUBIAS ◽  
ARMANDO LUIS-MARTÍNEZ ◽  
OMAR ÁVALOS-HERNÁNDEZ ◽  
...  
Keyword(s):  
South America ◽  
Special Reference ◽  
Geographical Distribution ◽  
Geographic Distribution ◽  
Temporal Patterns ◽  
Vegetation Types ◽  
Spatial And Temporal Patterns ◽  
Northern Limit ◽  
Biogeographic Provinces ◽  
Wing Patterns

We present a synthesis of the existing information on the genus Emesis Fabricius in Mexico concerning biogeographical patterns and taxonomical aspects. Emesis is the most diverse genus of Emesidini with 57 species and subspecies, with Mexico as the northern limit of this Neotropical genus. We analyzed 5434 specimens of the Lepidoptera Collection of the MZFC, UNAM and compared them with specimens from collections of Mexico, Central and South America. Taxonomic determination and corroboration were made by analysis of wing patterns and genitalia. Geographic distribution and phenology were obtained from the database MARIPOSA. We present an updated list of Emesis of Mexico, with 17 species and subspecies. For each species, we provide information on phenology, geographic, altitudinal, and vegetation distributions. We discuss taxonomic and undersampling concerns for some species, as well as spatial and temporal patterns with special reference to vegetation types and biogeographic provinces in Mexico. 

Factors affecting spatial and temporal patterns in perfluoroalkyl acid (PFAA) concentrations in migratory aquatic species: a case study of an exploited crustacean

2019 ◽  
Vol 21 (11) ◽  
pp. 1946-1956 ◽  
Author(s):  
Matthew D. Taylor
Keyword(s):  
Temporal Variation ◽  
Temporal Patterns ◽  
Spatial And Temporal Variation ◽  
Aquatic Species ◽  
Spatial And Temporal Patterns ◽  
Physiological Factors ◽  
Factors Affecting ◽  
Free Ranging ◽  
Perfluoroalkyl Acid

Free-ranging prawns showed substantial spatial and temporal variation in PFOS concentrations, most likely driven by behavioural and physiological factors.

The effects of lactation on the feeding behaviour and activity patterns of free-ranging female koalas (Phascolarctos cinereus Goldfuss)

2003 ◽  
Vol 51 (4) ◽  
pp. 415 ◽  
Author(s):  
M. Logan ◽  
G. D. Sanson
Keyword(s):  
Feeding Behaviour ◽  
Radio Telemetry ◽  
Activity Patterns ◽  
Tooth Wear ◽  
Phascolarctos Cinereus ◽  
Active Time ◽  
Compensation Mechanisms ◽  
Lactating Females ◽  
Time Spent Feeding ◽  
Free Ranging

The free-ranging feeding behaviour and activity patterns of three lactating and two non-lactating female koalas (Phascolarctos cinereus) were investigated using acoustically sensitive radio-telemetry. Lactating females were found to consume more leaf material, masticate more per leaf and at a greater rate, and perform more ingestive and mercyism mastications per 24 h than non-lactating females. Results suggest than female koalas are 'income breeders' that compensate for the higher energetic demands of lactation by increasing intake and, to a lesser degree, investing more in each mouthful so as to produce a shift in digesta particle size distribution in favour of more finer particles. Compared with non-lactating females, lactating female koalas were also found to spend more time moving within trees, feeding per 24 h and per bout, and less time resting and sleeping per 24 h, although the proportion of active time spent feeding was similar (~80%). This implies that female koalas adopt a 'time minimizing strategy whereby activity budgets respond to current requirements. Lactation-compensation mechanisms are compared with those reported for koalas with high tooth wear, and the capacity of aging female koalas to compensate for lactation are discussed.

Effects of rain and fly harassment on the feeding behaviour of free-ranging feral goats

1989 ◽  
Vol 24 (1) ◽  
pp. 31-41 ◽  
Author(s):  
Emma L. Brindley ◽  
David J. Bullock ◽  
Fiona Maisels
Keyword(s):  
Feeding Behaviour ◽  
Free Ranging

Meal patterns of cows offered complete diets with different ratios of concentrate to silage

2001 ◽  
Vol 2001 ◽  
pp. 2-2
Author(s):  
B.J. Tolkamp ◽  
N.C. Friggens ◽  
G.C. Emmans ◽  
I. Kyriazakis ◽  
J.D. Oldham
Keyword(s):  
Feeding Behaviour ◽  
Meal Size ◽  
Short Term ◽  
Data Set ◽  
Meal Patterns ◽  
Gut Fill

It is frequently assumed that energy intakes from mixed foods with a high proportion of silage (HS) are lower than those from mixed foods with a high proportion of concentrate (HC), because of short-term constraints, i.e. gut fill, that physically limit the amount of food a cow can consume. It was the aim of the present study to analyse how different proportions of concentrate in mixed foods affect short-term feeding behaviour. We hypothesised that cows offered HS are likely to have more meals that are more spread out during the day and vary less in size than cows offered HC. Alternatively, we expected higher correlations between meal size and the length of intervals before (pre-prandial) or after (post-prandial) meals for cows offered HS than for cows offered HC. We tested the hypotheses with a data set of 21195 meals.

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